//
// Created by 123 on 2024/12/30.
//
#include "iostream"
using namespace std;

int main042(){
    int a = 10;
    int &b = a;
    cout << "a==" << a << endl;
    cout << "b==" << b << endl;
    cout << "a==" << &a << endl;
    cout << "b==" << &b << endl;

    b = 100;

    cout << "a==" << a << endl;
    cout << "b==" << b << endl;

    return 0;
}